Screen attachment for windows.



G. (I. JACKSON.

SCREEN ATTACHMENT FOR WINDOWS.

APPLICATION rum) MAY 9. 1914.

1 ,1 17,390, Patented Nov. 17, 1914.

u INVENTOR w lTN ESS ES C(LTZLJ. ([(Lllkl O 776 007/ ATTORNEY THE NORRISPETERS CD" PHOIU-LITHO WASHING YUN. D C

UNITED STATES PATENT OFFICE.

CARL JOHAN JACKSON, OF SUPERIOR, WISCONSIN.

SCREEN ATTACHMENT FOR- WINDOWS.

Specification of Letters Patent.

Patented Nov. 17, 1914..

Application filed May 9, 1914. Serial No. 837,437.

To all whom it may concern Be it known that I, CARL J. JACKSON, a

The obiect of the present invention is to improve the constructionofwindow screens and to provide a slmple, practical, and comparativelyinexpensive screen attachment designed to be applied to a window atitheupper sash and adapted,vwhen the upper sash is lowered for ventilation,to provide a fly exit for causing the flies crawling upward on the sashto pass outward to the ex terior of the window.

A further object of the invention is to provide a device of thischaracter equipped with means arranged to prevent flies from entering atthe exit passage.

With these and otherobjects in viewthe invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawing, and pointed out in the claimshereto appended, it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificingany of the advantages of the invention. In the drawing:Figure 1 is a front elevati'onnof a screen attachment constructed inaccordance with this invention and shown applied to a window. Fig.2 is avertical sectional view of the same. Fig.3 is a horizontal sectionalview partly on the line 3--3 of Fig. 2, the section being also takenthrough one sideof the upper sash and the means for slidably connectingthe same with the screen. Fig. 4 is a horizontal sectional view on theline 4-4 of Fig. 2. Fig. ,5 is a rearperspective view of the screenattachment. Fig. 6 is a detail perspective view of one of the slides.Fig. 7 is a detail view of the spacing strip for offsetting the slidefrom the sash.

.. Like numerals of reference designatecorresponding parts in all thefigures of the drawing. In the accompanylng drawing, in WhlCh isillustrated the ipreferredembodiment of the invention, 1 designates awindow screen.-

consisting of a sheet 2 of wire gauze or other screen material, securedwithin a metallic binding or frame consisting of a horizontal top bar 3and vertical side bars 4, which are extended below the lower edge of thescreen material. The top bar 3 is preferably constructed of a piece ofsheet metal folded longitudinally to provide two sides or flanges forembracing the upper edge of the screen material. The side bars l arealso preferably constructed of sheet metal folded longitudinally to formside flanges for embracing the side edges of the screen material, whichis secured between the flanges of the top and side bars by split rivets5 or other suitable fastening devices. The split rivets 5 pierce therearflanges of the top and side bars and pass through the screen.

material and have theirlegs bent or upset:

and arranged between the same and the front flange,which is notperforated by the fastening ,devices 5. T heupper ends of the side barsare arranged between the flanges of the top bar and aresecured' to thesame by fastening devices 6, preferably consisting ofsplit rivets andhaving their sidesor legs bent or upset against the rear flangeof thetop bar 3. By this construction an inexpensive screen of great strengthand durability is provided. y

The side bars are constructed of a strip of metal of a width in excessof the width of the strip of metal forming the top bar 3,

and the side bars 4 have their outer portions bent inwardly andrearwardly to form longitudinal flanges 7, set at an angle to the planeof the rear flanges of the side bars and forming intervening grooves orways for the reception of slides 8 carried by an upper sash 9. Thewindow screen is provided at the topwith projecting lugs orears 10,consisting of plates 'or pieces secured to the screen by the saidfastening devices (3, and fastened to the window frame or casing at thetop thereof by screws 11 or other suitable fastening devices, which areem bedded in the top partingstrips 12 of the window frame or casingy13.The screen is arranged between the side parting stripsli and theextendedside bars terminate short of the upper edge of the lower" sash,as clearly illustrated in Fig; 2 of th drzwiiig. he upper sash 9 isconstructed sii stan: tially the same as an ordinary upper sash,

with the exception that the top bar 3 is omitted and the glass 15extends upwardly to the upper ends 16 of the side bars of the said uppersash 9. The upper edge of the glass 15 and the upper ends 16 of the sidebars extend above the lower edge of the parting strip 12, being therebyreceived with in the window frame or casing approximately the distanceof half an inch. The top of the window frame or casing may also begrooved to receive the upper edge of the glass and the upper ends of theside bars, if desired. The side bars are connected at their lowerportions by a-transverse brace 17 consisting of a rod arrangedexteriorly of the sash and located in rear of the top bar of the lowersash when the said upper sash is lowered for the purpose of ventilation.The slides 8 are preferably constructed of sheet metal folded to providetwo plies or thicknesses and bent longitudinally to form an innerattaching portion 18 and an outer engaging portion which is arranged atan obtuse angle to the attaching portion 18. The slides are secured tothe side bars of the upper sash by suitable fastening devices, spacingstrips 19 being preferably interposed between the attaching portions 18and the side bars of the sash, as clearly illustrated in Fig. 4 of thedrawing. The outer angularly disposed portions of the slides fit in thegrooves or ways of the side bars 4 of the screen, and slide therein whenthe upper sash is raised or lowered. The grooves or ways of the sidebars of'the screen are closed at their lower ends by stops 20 formed bybending the metal transversely, as clearly illustrated in Fig. 5 of thedrawing. This forms a convenient means for limiting the downwardmovement of'the upper sash, so that an inclined strip 21 of the screenmay be properly positioned with relation to the upper edge of the sashto form a fly exit.

The strip '21, which extends entirely across the space between thesidebars of the-"screen, is suitably secured at its lower edge to thesame and it extends upwardly and *outwardly to a point nearly over theupper edge of the glass of the upper sash, when the latter is lowered toits ventilating position. The inclined strip is arranged in spacedrelationwith the-upper edge of the glass to permit the flies crawlingupward on the glass of the upper sash to pass outward to the exterior ofthe window, and it is providedat its free edge with projecting wires 22which extend upwardly at various angles. These projecting wires,whilenot interfering with the free exit of "flies and other sects,assist in forming a barrier to prevent flies fromenterin'g the exitpassage between the screen and the glass of the upper sash. In practice,when it is desired to cause the flies to-pass out through the exitpassage, the lower sash is shaded or screened, so that sash is designedto be equipped with spring actuated bolts 28 for engaging the windowframe or casing to lock the upper sash. These bolts are arranged asufficient distance above the bottom of the upper sash,

so as to be exposed for operation above the lower sash 24 when thesaidupper sash is lowered. Any other suitable locking means may, ofcourse, be employed for securing the upper sash in its adjustment;

What is claimed is 1 v v 1. A screen attachment including'a win dowscreen provided with means for securing it in a fixed position withinthe top portion of a window frame in advance of the upper sash, andmeans for slidably connecting the screen withthe upper sash, said screenbeing arranged in spaced relation with the glass of the upper sash toprovide a fly exit when the upper sash is lowered. 2. A screenattachment -including ascreen provided with means for securing it in afixed position within the upper portion of a window frame in advance ofthe upper sash, said screen being provided at opposite sides withlongitudinal grooves or ways and having stops at the lower ends thereof,slides provided with means for mounting themon the upper sash,andmovable in the grooves orways of the screen, the latter being spacedfrom the glass of the upper sash to provide a. fly exit when the saidupper-sash is lowered, and means located at tflhe fly exit forpreventing the return of ies.

8. A screen attachment including a screen provided with means for"securing in a fixed position within the "upper portion of a windowframe or casing in advance of the upper sash, said screen being alsoprovided with side bars having extended lower portions and provided withlongitudinal grooves or ways, slides provided with means for securingthem to the upper sash and movable in the grooves or ways of the sidebars. of the screen, the latter being spaced from the 'glass'of theupper sash to provide a fly exit when the upper Isash is lowered, and"means locate at the fly exit for preventing theretu'rn of flies.

at. A'screen attachment including a "screen provided with a framecomprising a top bar having attaching means "and side bars bentlongitudinally to form flanges, said flanges being arranged at therear-face of the screen to form grooves or ways, and the sidebars beingbent at "their-lower ends to 'formstops, and slides movable in thegrooves or ways dow, said slides being spaced from the glass of theupper sash to form a fly exit when the upper sash is lowered.

5. The combination of a window provided with an upper sash having itsglass extended to the upper ends of the side bars of the sash, a screenprovided with means for securing it in a fixed position within the upperportion of the window frame or casing, said screen being spaced from theglass of the upper sash to provide a fly exit when the upper sash islowered, and a transverse strip mounted on the screen at an inclinationand arranged to extend over the fly exit to prevent the return of flies.

6. The combination of a window provided with an upper sash having itsglass extended to the upper ends of the side bars of the sash, a bracingrod extending across the exterior of the upper sash at the lower Intestimony, that I claim the foregoing i as my own, I have hereto affixedmy signature in the presence of two witnesses.

CARL J OHAN JACKSON.

Witnesses:

Ron'r. B. NYE, M. E. NEVILLE.

copies of this patent may be obtained for live cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

